Calamagrostis Species, Diamond Grass, Fall Blooming Reed Grass, Korean Feather Grass

Calamagrostisarundinacea

Family
Poaceae (poh-AY-see-ee)
Genus
Calamagrostis (ka-la-mo-GROSS-tis)
Species
arundinacea (a-run-din-uh-KEE-uh)
Synonym
Achnatherum brachytricha
Achnatherum brachytrichum
Calamagrostis brachytricha
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Grown for foliage
Herbaceous
Height
24-36 in. (60-90 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
Pollen may cause allergic reaction
Bloom Color
Pale Pink
Chartreuse (yellow-green)
Bloom Time
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Other Details
Category
Ornamental Grasses and Bamboo
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Lake Isabella, California

Denver, Colorado

Fort Collins, Colorado

Galena, Illinois

Hanna City, Illinois

Saint Charles, Illinois

Roslindale, Massachusetts

Minneapolis, Minnesota

Lake Placid, New York

Canton, Ohio

Conway, South Carolina

Millington, Tennessee

Olympia, Washington

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Gardener's Notes:

5
positives
1
neutral
0
negative
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D
D
Fort Collins, CO (Zone 5b) | January 2016 | neutral

Attractive grass that does fine for me in moderate shade. For an ornamental grass I'd only say it's so-so, but it's shade tolerance moves...Read More

C
ROSLINDALE, MA | March 2014 | positive

Its shade tolerance makes this is one of the most useful of grasses. Fine foliage forms neat clumps that do not spread. Very attractive f...Read More

G
Denver, CO (Zone 5a) | October 2011 | positive

nice radiating form (not strictly upright) in partial shade, somewhat low water in my Denver garden; passing up quite a few other grasses...Read More

B
Irving, TX (Zone 8a) | March 2007 | positive

This grass has a different look to it in comparison of the overused but earlier flowering Karl Foerster. This Grass has nice form and g...Read More

V
Lower Hudson Valley, NY (Zone 6b) | October 2004 | positive

Dynamite grass! The plumes are one of the most beautiful of all the grasses. If you can site it where it will be back-lit by the late day...Read More

M
Galena, IL | June 2004 | positive

This is one of my absolutely favorite grasses. Calamagrostis brachytricha stays in a nice, tight clump. The light green foliage sways gr...Read More

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